When it comes to XC tracks and swerving on trails, we want our wheelsets to be lightweight without compromising for durability and stiffness. That's what we like about the Control SL 2Bliss 29in Boost Wheel. Carbon fiber rims offer stiffness and durability, and a 25mm internal rim width accommodates wider XC racing tires, but it also allows for a smooth ride and eliminates any extra flex. Roval employs an optimized rim profile to offer maximum control and comfort so riders can carry on uninhibited.